Lubricating-cup



E. M. HEMPHILL.

LUBRICATING CUP.

APPLICATION FILED DEC. I9- 1919.

Patented Oct. 12, 1920.

2 33% P Xi r M 8 v a 7 1 r- H r 2 B 7 9 X Q 4 n 1 ,N m 1 W2 Y M 1%: r 7 WM 5 1 rli cant to the ELVERTON M. HEMPHILL, OF ELMIRA, NEW YORK.

LUBRICATING-CUP.

Application filed December 19, 1919.

To all '10 720m it may concern Be it known that I, ELvERToN M. HEMP- HILL, a citizen of the United States, residing at Elmira, in the county of Chemung and State of New York, have invented certain new and useful Improvements in Lubricating-Cups, of which the following is a specification.

- My invention relates to an improvement in lubricating cups, and the object is to provide a cup in which either oil or grease may be used, it consisting of a force feed for compressing the lubricant and insuring its feed, and a'capillary device which also insures and facilitates a uniform feed of lubripart to be lubricated.

In the accompanying drawings:

Figure 1 is a sectional view through one form of my cup;

Fig. 2 is a sectional view slightly modified form.

In the construction shown in Fig. 1, A is the cup having an external screw-thread 1; and 2, represents an internally-threaded through a cap adapted to screw on these threads. This 7 cap has a hole 3 through the center, and through it the stem 40f a threaded plunger 5 extends. The bottom 6 of the cup preferably slopes more or less to a central point where a hole is formed, and extending up through this hole is an upstanding tube 7 of suitable height, the bore of which leads down through a threaded nipple 8, which is adapted to screw down into the bearing to be lubricated.

A lateral hole or duct 9 is bored transversely through the upstanding tube at the very bottom of the cup, so that the cup has two outlets, one at the top, and the other at the bottom of the upstanding tube.

capillary device consists of a wicking 10 of absorbent material, and this is removably held in the tube 7 in any approved manner, preferably by means of a wire 11 having a loop 12 on one end, by which it is secured to the absorbent wickinglO, and a loop or handle 13 at the upper end. The wicki the wire, and then the wire with the wicking inserted in the tube 7 with the free end of the wicking loose in the cup, so that it will by capillary attraction keep the wick well saturated with oil, and a constant yet Specification of Letters Patent.

ng may be conveniently wound around Patented Oct. 12, 1920. Serial No. 345,986.

hausted, the handle 14 on the plunger-rod 1 is turned to the right screwing the plunger in, thus creating pressure upon the upper surface of the oil or grease, in this way forc-v ing it out into the bearing, and insuring or increasing the feed of oil or grease at any time desired.

In the construction cap is in the form of a into an internal thread in the cup, and while a sufiicient number of threads to the inch (say sixteen) will insure against the plug turning accidentally, the spiral spring is secured to the plug at its outer end, and bears at its inner end against the bottom of the cup. In that way by outward spring pressure against the plug, it absolutely prevents the latter from accidentally turning from the position in which it may be turned in the exercise of its function as a force feed plunger.

In the actual use of these cups, I have found them most eflectual for the purpose for which they are designed, either as a force feed, grease, or dope cup, or an oil cup, for any part that requires constant lubrication, as for instance the various hearings in an automobile, for example the roller bearings in a steering-gear, although it is understood the invention is applicable to any bearing or part to be lubricated.

claim:

1. A lubricating device including a cup having a screw threaded orifice in the bot tom, a tube having an external thread which screws upwardly into the hole in the bottom of into the cup, the endprotruding into the cup having a lateral hole above and adjacent to the bottom of the cup, and a force feed device at the upper end of the cup whereby lubricant is forced outof the tube.

2. A lubricating device including a cup shown in Fig. 2, the plug 15, which screws the cup and protrudes some distance the cup through I having a screw threaded orifice in the botlubricant is forced out of the cup through tom, a tube having an external thread which the tube, and a capillary device extending .10 screws upwardlyii'nto the hole in the botfrom the cup v"into and approximately tom of the cup and protrudes somedistanoe throughout the length of the tube for reguinto the cup, the end protruding into the ulating the flow of lubricant .out of the cup.

7 cup having a lateral hole above and adjacent In testimony'where'off aflix my signature.

to the bottom of the cup, a force feed de 7 r vice at the upper end of the cup whereby; ELVERTON M. HEMPHILL 

